Wire-straightening machine



Nov. 6, 1923. 11,473,261].

L. THOMPSON WIRE STRAIGHTENING MACHINE Filed Feb. 2, 1921 2 Sheets-Sheet1 IN VEN TOR.

A TTORNEYS NW. 6, 1923. TIA-73,2611 L. THOMPSON WIRE STRAIGHTENINGMACHINE Filed Feb. 2, 1921 2 Sheets-Sheet 2 mqw INVEN TOR.

A TTORNEYS Patented Nov. 5, i823.

aware. erra a iaraaa rarer orrrea Lawnnncn 'rnorarson, or searches, newso, assren'oe, ro as r.

smrs'r or new a: eonmacrrcor.

To all whom it may concern."

Be it known that I, LAWRENCE THOMP- soN, a citizen of the United States,and a resident of Syracuse, in the county of Onona daga and State of NewYork, have invented a certain new and useful Wire-Straightening Machine,of which the following is a specification.

This invention relates to wire straightenio ing machines, and has forits object a particularly simple and efficient means whereby the wirecan be started endwise through the machine by merely ap lying a pushingforce to the wire without ringing the dies as in axial alinement withthe wire passage of the body of the machine.

The invention consists in the novel fea-,

tures and in the combinations and constructions hereinafter set forthand claimed.

In describing this invention, reference is had to the accompanyingdrawings in which like characters designate corresponding parts in allthe views.

Figure 1 is an elevation of a machine emas bodylng my invention, thebase being broken away.

Fig. 2 is a thereof.

Figs. 3 and 4 are respectively end and side elevations of a guide block,Fig. 3, looking to the right in Fig. 4.

Fig. 5 is a fragmentary plan view of the right hand end portion of themachine shown in Fig. 1 shows one form of means for guiding the wire tothe rolls at the discharge end of the machine.

Fig. 6 is a fragmentary sectional view taken on line 6-6, Fig. 1.

Fig. 7 is a view similar to Fig. 5 of another form ofmeans for guidingthe wire to the rolls at the discharge end of the machine.

Fi 8 is an elevation of parts seen in Fig.

This machine comprises generally, a rotating body or mandrel 1 suitablysupported in a frame 2, and having an axial wire passage 3, intermediatedies 4 and end dies 5 arranged diametrically or transversely of the body1, each pair\of dies being spaced apart to form a wire hole, and guidesbetween the pairs of dies. The dies 4, 5, are preferably held by screws6* which thread into transverse passages 6 formed in the longitudinalsectional view i i, 5. -STEMGIEIT 8, 18m. Qertel H0. 4411,8458.

body or mandrel at regular intervals and intersectm the passage 3.

As wi be understood, the intermediate dies are arra ed with theirpassages out of almement with the passage 3 and the end dies 5, andalternate dies are arran ed with s lch pmages on opposite sides of t eaxial line of the passage 3, that is, the pairs of intermediate dies 4:are arra ed with their passages r in staggered relation. The two endpalrs of dies 5 are arran ed with their passages in alinement with thepassages 3. The dies 4, 5, are of softer material than the wire to beoperated on in order not to scratch or mar the wire during thestraightening operation.

7 are guides interposed between the airs of dies 4:, 5, and located inrecesses or c mbers 8 formed in the body 1 between the dies, theseguides being blocks, and each block having an inclined face 9 formedwith a ide groove 10 therein.

Each block extends the full width of the available space between twopairs of dies and each groove 10 is arranged in a plane radial with theaxis of the wire passage 3, and is presented toward or fac s the pair ofdies toward the front or entrance end of the machine, that is, the leftend Fig. 1, and inclines from near the wire passage of one pair of dies4 or 5 to near the entrance of the wire passage of the next pair ofdies, so that the end of the wire when first being QED forced throughthe passage 3, after passing through the first set of dies 5 strikes thewalls of the groove 10 of the first guide block and is deflected intothe wire hole of the next pair of dies 41 and after passing through thehole of the second pair of dies 4 encounters the walls of the groove 10of the second guide block and is deflected through the wire passage ofthe third pair of dles etc., until the wire is passed completely throughthe body 1.

There is one guide block in each chamber 8 and these guide blocks arearranged stagered, that is, the guide block in each chamer is arrangedon the opposite side of the axis of the wire passage 3 from that onwhich the uide block in the next chamber 8 is locate As here shown, theguide blocks are formed with rotatable stems 11 which thread into holes12 opening through the periphery The blocks 7 are of a harder metal thanthe wire in order that in pushing the wire through the body'l the endthereof will not dig [into and cling tothe blocks.

cans is also provided for guiding the wire between the rolls 14 andpreventing it from displacement on the rolls 14. As will be understoodby those skilled in the art, these rolls are grooved and formed doubleor multiple with grooves of different sizes, and such wheels areinterchangeable with other rolls having grooves of other sizes.Oftentimes, the wire jumps off the. rolls or from one groove to another.The guiding means, which prevents such occurrences comprises deflectorsarranged to form a converging guide toward the rolls 14. In Figs. 1, 5and 6, these guides are shown as deflectors or blades 16 arrangedbetween the end of the body or mandrel 1 and the rolls 14 and shiftablelaterally in juxtaposition to either of the grooves of sald ro.ls 14 andalso shiftable different distances apart. As here shown, the blades 16depend from arms 17 formed with slots 18 for receiving the screws 18threading in the frame 1. In Figs. 7 and 8 another form of guide isshown, comprising an angular bracket 20 secured to the frame by screws21 passing through slots in the bracket and having bushings or eyes 23carried by the angular part of the bracket.

In operation, the end of the wire is passed between the feed rolls 13and the power applied to the rolls 13, 14, whereby the wire ispushedthrough the passage 3 and the first end dies 5 and guided by theinclined roove 10 of the first guide 7 to the first set 0 intermediatedies 4 and so on until the end of the wire passes between the rolls 14.

This wire straightening machine is particularly advantageous in thatadjustment of the dies with the accompanying labor and loss of time, iseliminated thereby making the straightening operations of different runsof wires practically continuous, hence, greatly increasing theproduction of any one machine. It also eliminates the waste due tocuttin off the ends of the wire passed throug the machine before thedies are closed up in the machines heretofore in use; Furthermore, myimprovement, that is. the guide blocks, can be applied to anystandardmachines of this type.

I am aware that attempts have been made to accomplish substantially thesame result as accompllshed by the use of the guide blocks in mymachine, by forming the dies The rolls Hand 14 are con with flaringmouths but I have found that such machines are not operative and areconcededly not operative except onthesmaller sizes of softest wire, asthe ends of the wire stick in the flaring mouths of the dies, which diesmust be of softer material than the wire; and furthermore, the dies mustbe of greater width than desirable for straightening the wire.

In my machine, the die blocks can be of minimum width and the guideblocks occuply practically all the space between the pairs of dies.

What I claim is:

ing a rotating body having an axial wire passage, spaced aparttransverse passages and chambers intersecting the wire assage betweenthe transverse passages, sai chambers being divided from the passages byseparating walls, pairs of dies arranged in the transverse passages andhaving wire holes arranged staggered relatively to the axis of the wirepassage of the body and a guide block arranged in each chamber andhaving an inclined face formed with a groove arranged in a plane radialwith the axis of the wire passage of the body and presented toward thewire hole of the pair of dies at one side of the chamber and incliningtoward the wire hole of the pair of dies at the opposite side of thechamber, substantially as and for the purpose described.

2. A wire straightening machine comprising a rotating body having anaxial wire passage, spaced apart transverse passages and chambersintersecting the wire passage between the transverse passages, saidchambers being divided from the passages by separating walls, pairs ofdies arranged in the transverse passages and having wire holes arrangedstaggered relatively to the axis of the wire passage of the body and aguide block arranged in each chamber and having an inclined face formedwith a groove arranged in a plane radial with the axis of the wirepamage of the body and presented toward the wire hole of the pair ofdies at one side of the chamber and inclining toward the wire hole ofthe pair of dies at the opposite side of the chamber, said blockextending from near the wire hole of one air of dies and terminatingnear the wire ole of the next pair of dies, the blocks located inadjacent chambers being arranged on opposite sides of the axis of thewire pawl e of the body, substantially as and for t e purpose specified.

3. A w1re straightening machine comprising a rotating body having axialwire passages, spaced apart transverse passages intersecting the wirepassage, and chambers between the transverse passages, said chambersbeing divided from the passages b se arating walls, pairs of diesarranged m t e 1. A wire straightening machine compristransversepassages and having wire holes arranged staggered relatively to the axisof the wire passage of the body, and guide blocks arranged in thechambers and extending the full width thereof, each block hav-- ing aninclined face formed with a groove arran ed in a plane radial with theaxis of the wire passage of the body and presented toward the wire holeof the pair of dies at one side of the chamber and inclining toward thewire hole of the pair of dies at the opposite side of the chamber,substantially as and for the purpose set forth.

4. A wire straightening machine comprising a rotating body having axialwire passages, spaced apart transverse passages intersecting the wirepassage, and chambers between th transverse passages, said chambersbeing divided from the passages by separating walls, pairs of diesarranged in the transverse passages and having wire holes arrangedstaggered relatively to the axis of the wire passage of the body, andguide blocks arranged in the chambers and extending the full widththereof, and each having an inclined face formed with a groove arrangedin a plane radial with the axis of the wire passage of the body andpresented towardthe wire hole of the pair of dies at one side of thechamber and inclining toward the wire hole of the pair of dies at theopposite side of the chamber, said block extending from near the wirehole of one pair of dies and terminating near the wire hole of the nextpair of dies, the blocks located in adjacent chambers being arranged onopposite sides of the axis of the wire passage of the body, and meansfor forcing the wire through the body and the dies and past the guideblocks, substantially as and for the purpose described.

5. In a wire straightening machine, a re tating mandrel havingstraightening dies therein, rolls at the discharge end of the mandreland spaced therefrom for receiving the wire. and means adjustablymounted between such end of the mandrel and the rolls for guiding thewire to the rolls, substantially as and for the purpose described.

6. In a wire straightening machine, a rotating mandrel havingstraightening dies therein. rolls at the discharge end of the mandreland spaced therefrom for receiving the wire, and means adjustablymounted between such end of the mandrel and the rolls for guiding thewire to the rolls, said means comprising a part confining a passageconverging toward the rolls, substantially as and for the purposespecified.

7. In a wire straightening machine, a rotating mandrel havingstraightening dies therein, rolls at the discharge end of the mandrelfor receiving the wire, and means I between such end of the mandrel andthe rolls for guiding the wire to the rolls, said means comprising apair of blades inclined along their lengthwise dimensions to form apassage converging toward the rolls, substantial 1y as and for thepurpose set forth.

8. A wire traightening machine comprising a rotating mandrel, wirestraightening dies arranged in the mandrel in spaced relation, a guidearranged in the mandrel be tween said'dies, an adjusting screw havingits inner end loosely engaged in a recess in said guide and having aperipheral groove, and a pin located in said groove and having its endsheld by said guide.

In testimony whereof, I have hereunto signed my name, at Syracuse, inthe county of Onondaga, and State of New York, this 15th day of January,1921.

LAWRENCE THOMPSON.

